After slaying the Hydra, I left the Fire Swamp and entered the Dark Forest.

While traversing the Dark Forest, I came upon the entrance to a Goblin Knight Stronghold.

Here, I would find my next opponents, the Knight Phantom.

But first, I had to navigate the Stronghold, killing the various creatures that called the place home.

Eventually, I came upon the door to the Knight Phantom room, but before I could fight them, I had to prove I was a worthy fighter.

Taking one of the various trophies I had collected during my journey thus far, I placed it upon a pedestal, and the door opened, allowing me a chance to face off against the Knight.